package com.ler.yrmall.order.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.ler.yrmall.order.entity.OrderEntity;

import java.math.BigDecimal;

/**
 * @author Leron
 */
public interface OrderMapper extends BaseMapper<OrderEntity> {

    /**
     * 获取总交易额
     * @return
     */
    BigDecimal getTradeAmount();

}
